If you want to be the most popular person on your next flight, travel with a dog.
People who would otherwise brush by with a snarl on their face actually smile and strike up a warm conversation when they see a cute pooch popping his noggin' out of the carrier. It's amazing how different it makes the travel experience. Strangers suddenly become comrades, grumpy people light up, children squeal with delight. And Baci feels like a rock star. :)